The designation "amateur theatre" means that the actors have no training in performance

On the interior of the dome for San Carlo alle Quattro Fontane, Borromini creates a floating, levitating sensation by:

a. adding hidden windows at the base. b. leaving an oculus open to the sky. c. actually stretching the dome high upward. d. all of these. e. none of these.

Otto Dix's work Der Krieg is in what time-honored religious format?

A. Diptych B. Prayerbook C. Reliquary D. Triptych